I’m have snap that communicate with a custom hid device. The app contained within the snap uses nodejs and the library I’m using is ‘node-hid’. Note that ‘node-hid’ uses the hidapi internally.
My app is running as a daemon and gives this error when I try to start it:
cannot initialize hidapi (hid_init failed)
I know that the nodejs app works on its own with no problems (as long as a specify sudo) but I cant seem to figure how to connect to hidraw plug.
I have also tried the raw-usb plug but that as not worked as well.
Running installing the snap in devmode works so that’s promising.
Here is a the yaml file:
grade: stable # must be 'stable' to release into candidate/stable channels confinement: strict # use 'strict' once you have the right plugs and slots apps: hid-demo: command: bin/hid-demo plugs: [hidraw, network, raw-usb] daemon: simple restart-condition : always parts: hid-demo: plugin: nodejs stage-packages: [libusb-1.0-0] override-pull: | echo "Configure linux dependencies" apt-get install build-essential git apt-get install gcc-4.8 g++-4.8 && export CXX=g++-4.8 apt-get install libusb-1.0-0 libusb-1.0-0-dev apt-get install -y pkg-config snapcraftctl pull source: .